Home / 56,861.11-78,468.11-31,369.06

Finding the Fourth Proportional to 56,861.11, 78,468.11 and 31,369.06

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Solution

The fourth proportional to 56,861.11, 78,468.11 and 31,369.06 is: 43,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.11 : 78,468.11 = 31,369.06 : x
  2. Step 2: Convert to fraction form
    56,861.11/78,468.11 = 31,369.06/x
  3. Step 3: Cross multiply
    56,861.11x = 78,468.11 × 31,369.06
  4. Step 4: Simplify right side
    56,861.11x = 2,461,471,287.42
  5. Step 5: Solve for x
    x = 2,461,471,287.42/56,861.11
  6. Step 6: Final answer
    x = 43,289.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.